Big Brother couple Grace Adams-Short and Mikey Dalton announce they're expecting third baby together

Big Brother couple Grace Adams-Short and Mikey Dalton are expecting baby number three!

Former reality TV star Grace Adams-Short revealed that she is expecting another baby through an announcement on Instagram. Sharing a shot of herself and her man, she captioned the picture '#34weeks' along with an emoji featuring hearts for eyes.

In the snap, Grace and Mikey Dalton appear to be dressed up for a special occasion.

With her blonde hair neatly blow-dried, Grace wears a smart velvet wrap dress that falls below her knee with a pair of nude studded heels.

And suitably dapper, Mikey looks very smart in a white shirt teamed with a grey blazer and dark trousers.

The duo have been in a relationship for 12 years, having met on the seventh series of Big Brother back in 2006. They were in the famous house with Nikki Graham and Aisleyne Horgan-Wallace.

Grace and Mikey tied the knot in 2009 after getting engaged just months after the series wrapped up.

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[/instagram]They are parents to two other children - a little boy named Spencer and a daughter called Georgiana.

Grace often shares pictures of her brood on the social networking site, including an adorable one of the family on Christmas Day.

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[/instagram]The family flash their biggest smiles while posing in front of a colourfully decorated tree in a very festive room. A few presents can also be seen scattered over the wooden floor.

Obviously thrilled by the happy new baby news, a number of Grace's followers posted congratulatory messages for Grace and Mikey.

'Yous look unreal grace. ❤️😘,' said one.

Another added: 'Congrats to you both x.'

A third follower commented on how happy they were to see that Grace and Mikey are still so loved up after so many years.

'So happy you 2 are still together loved you since Big Brother,' they quipped.